Question

Statement-1 : When a longitudinal pressure wave is reflected at the open end of an organ pipe, the compression pressure wave pulse becomes rarefraction pressure wave pulse during the reflection.
Statement-2 : The phase of the wave changes by when reflected at the open end.

• A. Both the statements are true and statement-2 is the correct explanation of statement-1
• B. Both the statements are true but statement-2 is not the correct explanation of statement-1
• C. Statement-1 is true and statement-2 is false
• D. Statement-1 is false and statement-2 is true

Answer 1

Answer: (A)

Both the statements are true and statement-2 is the correct explanation of statement-1

When a longitudinal pressure wave is reflected at the open end the phase changes by $\pi .$ Thus compression becomes rarefraction.